diff -r 30204975694a -r 64ea7282611e src/main.h
--- a/src/main.h	Mon May 16 01:40:49 2022 +0300
+++ b/src/main.h	Tue May 24 16:11:10 2022 +0300
@@ -21,6 +21,7 @@
 #include <QVector>
 #include <QSet>
 #include <QDebug>
+#include <compare>
 #include <memory>
 #include "basics.h"
 #include "utility.h"